Characteristics of Nd:GdVO4 Laser with Different Nd-Doping Concentrations
ZHANG Ling1, ZHANG Chun-Yu1, WEI Zhi-Yi1, ZHANG Zhi-Guo1, Stephan Strohmaier2, Hans J. Eichler2
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Optical Institute, Technical University Berlin, Strasse de 17 Juni 135, D-10623 Berlin, Germany
Characteristics of Nd:GdVO4 Laser with Different Nd-Doping Concentrations
ZHANG Ling1;ZHANG Chun-Yu1;WEI Zhi-Yi1;ZHANG Zhi-Guo1;Stephan Strohmaier2;Hans J. Eichler2
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Optical Institute, Technical University Berlin, Strasse de 17 Juni 135, D-10623 Berlin, Germany
Abstract： We report the properties of a compact diode-pumped continuous-wave Nd:GdVO4 laser with a linear cavity and different Nd-doped laser crystals. In a 0.2at.% Nd-doped Nd:GdVO4 laser, 1.54W output
laser power is achieved at 912nm wavelength with a slope efficiency of 24.8% at an absorbed pump power of 9.4W. With 0.3at.% Nd-doping concentration, we can obtain the either single-wavelength emission at 1064nm or 912nm or the dual-wavelength emission at 1064nm and 912nm by controlling the incident pump power. From an incident pump power of 11.6W, the 1064nm emission between 4F3/2 and 4I11/2 is suppressed completely by the 912nm emission between 4F3/2 and 4I9/2. We obtain 670mW output of the 912nm single-wavelength laser emission with a slope efficiency of 5.5% by taking an incident pump power of 18.4W. Using a Nd:GdVO4 laser with 0.4at.% Nd-doping concentration, we obtain either the single-wavelength emission at 1064nm or the dual-wavelength emission at both 1064nm and 912nm by increasing the incident pump power. We observe a strong competition process in the dual-wavelength laser.
ZHANG Ling;ZHANG Chun-Yu;WEI Zhi-Yi;ZHANG Zhi-Guo;Stephan Strohmaier;Hans J. Eichler. Characteristics of Nd:GdVO4 Laser with Different Nd-Doping Concentrations[J]. 中国物理快报, 2006, 23(8): 2088-2091.
ZHANG Ling, ZHANG Chun-Yu, WEI Zhi-Yi, ZHANG Zhi-Guo, Stephan Strohmaier, Hans J. Eichler. Characteristics of Nd:GdVO4 Laser with Different Nd-Doping Concentrations. Chin. Phys. Lett., 2006, 23(8): 2088-2091.
2006, Vol. 23 
